The risk factors for calcification vary among the different sections of the lower extremity artery in patients with symptomatic peripheral arterial disease

Table 4 Univariate linear regression analysis of the LEACS in the total lower extremity artery and at various arterial sections

Factors	Total lower extremity artery		Aortoiliac artery		Femoropopliteal artery		Infrapopliteal artery
Factors	PRC (95%CI)	P	PRC (95%CI)	P	PRC (95%CI)	P	PRC (95%CI)	P
Age > 60 years	0.744 (0.496–0.992)	< 0.001	0.650 (0.397–0.903)	< 0.001	0.988 (0.650–1.325)	< 0.001	0.840 (0.503–1.177)	< 0.001
Male	0.50(−0.043–0.543)	0.094	0.184(−0.110–0.478)	0.219	0.199(− 0.201–0.598)	0.328	0.504 (0.119–0.890)	0.011
Diabetes	0.263 (0.023–0.504)	0.032	0.098(−0.145–0.341)	0.429	0.564 (0.244–0.885)	0.001	0.504 (0.189–0.820)	0.002
Smoking	0.100(−0.167–0.366)	0.461	0.238(−0.027–0.503)	0.078	− 0.004(− 0.366–0.358)	0.983	−0.051 (0.405–0.303)	0.778
Drinking	0.090(−0.154–0.334)	0.469	0.099(−0.145–0.343)	0.425	0.152(− 0.179–0.482)	0.367	0.312(− 0.009–0.634)	0.057
CKD	0.099(− 0.187–0.385)	0.496	−0.116(− 0.402–0.170)	0.424	0.310(− 0.076–0.696)	0.114	0.369(− 0.008–0.746)	0.055
Hypertension	0.297 (0.048–0.546)	0.019	0.320 (0.072–0.568)	0.012	0.269(− 0.071–0.609)	0.120	0.170(− 0.164–0.504)	0.317
Hyperlipidemia	0.0.93(− 0.151–0.337)	0.452	0.121(− 0.122–0.365)	0.327	0.170(− 0.161–0.500)	0.313	−0.043(− 0.367–0.281)	0.795

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